I have extracted an intermediate layer from VGG16 using my 256x256 image input. The dimension of this intermediate input is [512, 8, 8], therefore 512 channels.
I want to pass this intermediate output into a decoder that expects an input of [32, 8, 8], how can I do this without loss of information e.g. I guess it would not be a good idea to take a 32 channel slice of the 512 channel input?
tl;dr how do I reduce 512 channels to 32?